CA2156841A1 - Servodirection - Google Patents

Servodirection

Info

Publication number
CA2156841A1
CA2156841A1 CA002156841A CA2156841A CA2156841A1 CA 2156841 A1 CA2156841 A1 CA 2156841A1 CA 002156841 A CA002156841 A CA 002156841A CA 2156841 A CA2156841 A CA 2156841A CA 2156841 A1 CA2156841 A1 CA 2156841A1
Authority
CA
Canada
Prior art keywords
servo
wheel
power steering
steering system
motors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002156841A
Other languages
English (en)
Other versions
CA2156841C (fr
Inventor
Julien Simard
Pierre Couture
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dana TM4 Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2156841A1 publication Critical patent/CA2156841A1/fr
Application granted granted Critical
Publication of CA2156841C publication Critical patent/CA2156841C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2036Electric differentials, e.g. for supporting steering vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K1/02Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/52Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D6/00Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D9/00Steering deflectable wheels not otherwise provided for
    • B62D9/002Steering deflectable wheels not otherwise provided for combined with means for differentially distributing power on the deflectable wheels during cornering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00Electrical machine types; Structures or applications thereof
    • B60L2220/40Electrical machine applications
    • B60L2220/44Wheel Hub motors, i.e. integrated in the wheel hub
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/10Vehicle control parameters
    • B60L2240/12Speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/42Drive Train control parameters related to electric machines
    • B60L2240/423Torque
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Power Steering Mechanism (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

Une servodirection utilisée dans un véhicule terrestre dont les roues directionnelles (30) sont motrices de façon indépendante. Un asservissement est produit en créant un couple différentiel à l'aide des moteurs (40). L'asservissement est fourni lorsqu'un couple est appliqué au volant (10), en générant le couple différentiel par les moteurs (40) de façon à créer des forces d'asservissement cause de bras de levier virtuel (39) définis entre le centre de traction (34) de chaque roue (30) et l'intersection imaginaire avec le sol d'une prolongation virtuelle de l'axe d'orientation (32) de la roue (30).
CA002156841A 1993-03-01 1994-03-01 Servodirection Expired - Fee Related CA2156841C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/025,419 US5323866A (en) 1993-03-01 1993-03-01 Power steering system
US025,419 1993-03-01
PCT/CA1994/000110 WO1994020353A2 (fr) 1993-03-01 1994-03-01 Servodirection

Publications (2)

Publication Number Publication Date
CA2156841A1 true CA2156841A1 (fr) 1994-09-15
CA2156841C CA2156841C (fr) 2004-05-25

Family

ID=21825945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002156841A Expired - Fee Related CA2156841C (fr) 1993-03-01 1994-03-01 Servodirection

Country Status (14)

Country Link
US (1) US5323866A (fr)
EP (1) EP0686111B1 (fr)
JP (1) JP3411922B2 (fr)
KR (1) KR100303588B1 (fr)
CN (1) CN1065490C (fr)
AT (1) ATE165057T1 (fr)
AU (1) AU676275B2 (fr)
BR (1) BR9406446A (fr)
CA (1) CA2156841C (fr)
DE (1) DE69409637T2 (fr)
NZ (1) NZ262077A (fr)
TR (1) TR28435A (fr)
TW (1) TW253876B (fr)
WO (1) WO1994020353A2 (fr)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134240C2 (de) * 1991-10-16 1995-12-14 Mannesmann Ag Lenkungsunterstützung bei einem nicht-spurgebundenen Fahrzeug
DE19632251B4 (de) * 1996-08-09 2004-08-26 Volkswagen Ag Vorrichtung und Verfahren zur Lenkung eines Kraftfahrzeuges
US6039133A (en) * 1997-11-17 2000-03-21 Zulu; Joshua Steering control system for an articulating work machine having a steering fluid cylinder and a fluid-powered differential
DE19833189A1 (de) * 1998-07-23 2000-01-27 Bayerische Motoren Werke Ag Lenksystem für ein Fahrzeug
GB2345895B (en) * 1999-01-22 2002-12-18 Rover Group A vehicle
JP3487223B2 (ja) 1999-07-07 2004-01-13 株式会社豊田自動織機 パワーステアリングシステム
GB9921993D0 (en) * 1999-09-17 1999-11-17 Delphi Tech Inc Self-locking drag link for steer-by-wire system
JP2001354154A (ja) * 2000-04-13 2001-12-25 Honda Motor Co Ltd 後輪転舵装置
US6423629B1 (en) * 2000-05-31 2002-07-23 Kie Y. Ahn Multilevel copper interconnects with low-k dielectrics and air gaps
KR20020017158A (ko) * 2000-08-29 2002-03-07 밍 루 차량용 조향 시스템
US6622813B2 (en) 2001-07-26 2003-09-23 Delphi Technologies, Inc. Hybrid steer-by-wire with mechanical link
KR100503334B1 (ko) * 2002-08-12 2005-07-25 현대모비스 주식회사 차량용 조향장치
JP2004345592A (ja) * 2003-05-26 2004-12-09 Nissan Motor Co Ltd 車両の操舵装置
JP4349092B2 (ja) * 2003-11-12 2009-10-21 トヨタ自動車株式会社 車両のパワーステアリング制御装置
DE102004004678B4 (de) * 2004-01-29 2005-12-29 Otto Bock Healthcare Gmbh Drehmomentsensor
GB2435023B8 (en) * 2004-03-18 2008-10-22 Ford Global Tech Llc Parking assistance using diffrential torque steering
DE102004013897B4 (de) * 2004-03-22 2009-04-16 Noell Mobile Systems & Cranes Gmbh Portalhubstapler mit elektrischer Lenkung
JP4604566B2 (ja) * 2004-06-17 2011-01-05 日産自動車株式会社 車両用操舵装置
US20060113136A1 (en) * 2004-11-30 2006-06-01 Coot2 Inc. Off road vehicle apparatus and method
JP4556643B2 (ja) * 2004-12-01 2010-10-06 トヨタ自動車株式会社 車両の制駆動力制御装置
JP4812409B2 (ja) * 2005-11-16 2011-11-09 日立オートモティブシステムズ株式会社 パワーステアリング装置
GB2437503A (en) * 2006-04-24 2007-10-31 Advanced Transp Systems Ltd Steering arrangement using differing drive torques
GB2448471A (en) * 2007-04-20 2008-10-22 Advanced Transp Systems Ltd Vehicle with backup mode for four wheel steering
DE102007043599A1 (de) * 2007-09-13 2009-03-19 Robert Bosch Gmbh Verfahren zur Durchführung eines Lenkvorganges in einem Fahrzeug
US20140299392A9 (en) * 2007-10-26 2014-10-09 Frederick William Klatt Brushless Multiphase Self-Commutation Control (BMSCC) And Related Inventions
JP2009225537A (ja) * 2008-03-14 2009-10-01 Autech Japan Inc 駆動力制御装置
WO2014008378A1 (fr) 2012-07-06 2014-01-09 Mtd Products Inc Pignon d'entraînement pour un véhicule utilitaire à chenilles
WO2015038913A1 (fr) 2013-09-13 2015-03-19 Mtd Products Inc Roue dentée d'entraînement pour un véhicule à chenille
US9884662B2 (en) 2013-09-13 2018-02-06 Mtd Products Inc Suspension and lock-out systems for a partially tracked vehicle
EP3303102B1 (fr) * 2015-05-29 2023-08-23 MTD products Inc Véhicule utilitaire
CN107600171B (zh) * 2017-08-08 2020-12-01 清华大学 轮边/轮毂驱动多轴车辆的转向方法
CN109017994A (zh) * 2018-06-29 2018-12-18 北京中云智车科技有限公司 一种无人车通用化线控底盘
CN112238896B (zh) * 2019-07-18 2021-10-22 上海燧方智能科技有限公司 车用转向方法、系统、行驶机构的转向方法及行驶机构
CN111267950A (zh) * 2020-03-16 2020-06-12 中联重机股份有限公司 机动车辆及其转向行走控制系统
GB202001243D0 (en) * 2020-01-29 2020-03-11 Mclaren Automotive Ltd Steering assistance
CN113954622A (zh) * 2021-09-29 2022-01-21 合肥工业大学 一种两档可旋转轮毂电机四驱小车

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571180A (en) * 1946-08-16 1951-10-16 Joy Mfg Co Steering operated control mechanism for electric motor drives of vehicles
FR1130755A (fr) * 1955-08-22 1957-02-12 Châssis déformable de véhicule automobile
US3154164A (en) * 1961-10-12 1964-10-27 Cochran Equipment Company Off-highway tractor
BE762876A (fr) * 1970-03-06 1971-07-16 Siemens Ag Vehicule automobile a propulsion par courant alternatif
US4196785A (en) * 1977-02-16 1980-04-08 Downing James H Jr All-electric A.C. tractor
FR2486881A1 (fr) * 1980-07-18 1982-01-22 Jarret Jean Vehicule terrestre a commande electronique et procede de pilotage s'y rapportant
FR2549433B1 (fr) * 1983-07-20 1985-11-08 Jarret Jean Marie Vehicule guide par le couple individuel applique a ses roues motrices, et procede pour faire virer un tel vehicule
JPS6094871A (ja) * 1983-10-31 1985-05-28 Katsuji Iwatani 前輪駆動車輛に於ける操舵装置
JPS60176113A (ja) * 1984-02-22 1985-09-10 Meidensha Electric Mfg Co Ltd 無人走行車の運転制御装置
JPS60206785A (ja) * 1984-03-29 1985-10-18 Toyoda Mach Works Ltd 動力舵取装置
JPH069978B2 (ja) * 1984-04-20 1994-02-09 光洋精工株式会社 電子制御式パワ−ステアリングの操舵力制御装置
JPS6181865A (ja) * 1984-08-16 1986-04-25 Honda Motor Co Ltd 電磁型倍力装置
JPS6181866A (ja) * 1984-09-12 1986-04-25 Honda Motor Co Ltd 電動式パワ−ステアリング装置
US4549624A (en) * 1984-10-12 1985-10-29 Everest & Jennings, Inc. Wheelchair direction control means
KR920007039B1 (ko) * 1985-02-02 1992-08-24 가부시기가이샤 히다찌세이사꾸쇼 전동 파워스티어링장치
JPH0725270B2 (ja) * 1986-02-05 1995-03-22 富士重工業株式会社 車両の後輪トルク配分制御装置
JPH0796370B2 (ja) * 1986-03-07 1995-10-18 富士重工業株式会社 車両の後輪トルク配分制御装置
JPH0624940B2 (ja) * 1986-12-04 1994-04-06 三菱電機株式会社 電動式後輪操舵装置
US4905783A (en) * 1987-06-26 1990-03-06 Ford Motor Company Vehicular controller with differential wheel speed input
JPS6474164A (en) * 1987-09-16 1989-03-20 Hitachi Ltd Motor-driven power steering device
IL84382A (en) * 1987-11-05 1995-12-08 Carcom Computerized Vehicle Lt Computerized electrical vehicle
WO1990011905A1 (fr) * 1989-03-31 1990-10-18 Kabushiki Kaisha Shikoku Sogo Kenkyujo Voiture electrique
JPH0730456Y2 (ja) * 1989-05-11 1995-07-12 株式会社神戸製鋼所 ホイールクレーンのステアリング制御装置
JPH04236190A (ja) * 1991-01-11 1992-08-25 Toyota Motor Corp ブラシレスモータのための電気制御装置
IL97314A0 (en) * 1991-02-20 1992-05-25 Israel Aircraft Ind Ltd Power steering system for vehicle
US5161813A (en) * 1991-04-24 1992-11-10 Aisin Aw Co., Ltd. Vehicle steering apparatus and a vehicle provided with the same
JP3046108B2 (ja) * 1991-08-26 2000-05-29 富士重工業株式会社 差動制限装置付き車両の舵力制御方法
DE4134240C2 (de) * 1991-10-16 1995-12-14 Mannesmann Ag Lenkungsunterstützung bei einem nicht-spurgebundenen Fahrzeug
EP0616515A4 (fr) * 1991-12-05 1994-11-17 Pagett Ind Pty Limited J Vehicule a quatre roues motrices.

Also Published As

Publication number Publication date
BR9406446A (pt) 1996-02-13
AU6152094A (en) 1994-09-26
TR28435A (tr) 1996-06-19
KR960700926A (ko) 1996-02-24
CA2156841C (fr) 2004-05-25
JP3411922B2 (ja) 2003-06-03
KR100303588B1 (ko) 2001-11-22
ATE165057T1 (de) 1998-05-15
CN1118590A (zh) 1996-03-13
CN1065490C (zh) 2001-05-09
DE69409637T2 (de) 1998-11-26
TW253876B (fr) 1995-08-11
AU676275B2 (en) 1997-03-06
JPH08507481A (ja) 1996-08-13
US5323866A (en) 1994-06-28
EP0686111B1 (fr) 1998-04-15
WO1994020353A3 (fr) 1995-01-12
NZ262077A (en) 1997-09-22
DE69409637D1 (de) 1998-05-20
EP0686111A1 (fr) 1995-12-13
WO1994020353A2 (fr) 1994-09-15

Similar Documents

Publication Publication Date Title
CA2156841A1 (fr) Servodirection
US3666036A (en) Trailing road arm system
WO2002014136A3 (fr) Vehicule a rayon de braquage nul comportant un mecanisme a une pompe et deux moteurs
CA2086365A1 (fr) Vehicule-jouet
DE59602929D1 (de) Strassenfertiger
FR2433452A1 (fr) Tracteur
FR2445160A1 (fr) Voiture orientable pour changement de voie sur circuit miniature
FR2377928A1 (fr) Trottinette actionnee par le balancement de son conducteur
US4205730A (en) Mounting and driving mechanism for the steerable wheels of a multi-wheel off-road vehicle
AU1187388A (en) Toy vehicle for multi-lane toy roadways
US3420326A (en) Land vehicle propulison
CN2159905Y (zh) 四轮驱动四轮转向自走式植保喷雾车
JPS6379282U (fr)
JPH073764A (ja) 土工用振動ローラ
FR2419206A1 (fr) Autobus articule
JPH04118892U (ja) 全輪駆動機構
CN1033131C (zh) 山地耕作机
JPS61185617U (fr)
CN2280402Y (zh) 自走式耕田机
ES2070643T3 (es) Vehiculo de juguete con ruedas directrices.
JPS6167031U (fr)
JPS6429023U (fr)
JPH04135992A (ja) 走行装置
JPS6164030U (fr)
JPS5852080U (ja) 自走式台車

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed